23221020013 has 8 divisors (see below), whose sum is σ = 23327265600. Its totient is φ = 23115006048.

The previous prime is 23221020007. The next prime is 23221020019. The reversal of 23221020013 is 31002012232.

It is an interprime number because it is at equal distance from previous prime (23221020007) and next prime (23221020019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23221020013 - 2³³ = 14631085421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144673 + ... + 259561.

It is an arithmetic number, because the mean of its divisors is an integer number (2915908200).

Almost surely, 2^23221020013 is an apocalyptic number.

It is an amenable number.

23221020013 is a deficient number, since it is larger than the sum of its proper divisors (106245587).

23221020013 is a wasteful number, since it uses less digits than its factorization.

23221020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115811.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23221020013 its reverse (31002012232), we get a palindrome (54223032245).

The spelling of 23221020013 in words is "twenty-three billion, two hundred twenty-one million, twenty thousand, thirteen".